Frequently asked
What does the XY · Ultra Rare · PSA 9 track?
8 XY Ultra Rare cards graded PSA 9, weighted by market cap. It started at 100.00 on 2026-08-08 and stands at 139.91.
How has the XY · Ultra Rare · PSA 9 moved?
It is up 90.1% over the past month and up 39.9% year to date.
Which cards carry the most weight in the XY · Ultra Rare · PSA 9?
Blastoise EX (PSA 9) at 51.4%, Venusaur EX (PSA 9) at 19.0% and Xerneas EX (PSA 9) at 15.3% of the index.
How is the XY · Ultra Rare · PSA 9 calculated?
The level is the constituents' combined market cap (fair value times graded population) divided by a divisor, with each card's weight dampened by the confidence of its fair value. The index rebalances weekly and the divisor absorbs every membership and population change, so only prices move the level. Values are recomputed daily from graded sales.